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Finding the Third Proportional to 40,269,390 and 87,257,244

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Solution

The third proportional to 40,269,390 and 87,257,244 is: 189,072,311.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,269,390 : 87,257,244 = 87,257,244 : x
  2. Step 2: Convert to fraction form
    40,269,390/87,257,244 = 87,257,244/x
  3. Step 3: Cross multiply
    40,269,390x = 87,257,244 × 87,257,244
  4. Step 4: Simplify right side
    40,269,390x = 7,613,826,630,475,536
  5. Step 5: Solve for x
    x = 7,613,826,630,475,536/40,269,390
  6. Step 6: Final answer
    x = 189,072,311.02

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.